For all of these you're trying to solve for the variable. The variable is usually a number or symbol.
11) -44+n=36
Step one would be to add 44 to both sides of the equation.
N=80
12) -36=p-91
Step one would be to add -91 to both sides of the equation.
P=55
13) X-225=671
Step one you be to add 225 to both sides of the equation. Although it may seem difficult because of the big numbers, it's the same technique.
14) 19=c-(-12)
Step one on this equation will be a little different. Because there are two negative signs (-), they turn into a plus sign. Remember, two negative signs make a positive sign.
19=c+12
Now you just subtract 12 from each side of the equation.
6=C
The third one, for every 6 french fries, there is 1 packet of ketchup.
1/3
3/9
4/12
are equivalent to 2/6
425(4)= 1700. After 4 months they would have lost $1700
Let x represent the amount of dimes
Let y represent the amount of nickles
So since he has 20 coins, x + y = 20
and if we want to find the total money of dimes, we have to multiply x with 10
So 10x + 5y = 165 (in cents)
2x + y = 33
-x - y = -20
x = 13
so x = 13 and y = 7
Hope this helps :)
